Não informado. (1999). System development. Applied Computer Research.
Lua i Stíl Chicago (17ú heag.)Não informado. System Development. Phoenix, Ariz: Applied Computer Research, 1999.
Lua MLA (8ú heag.)Não informado. System Development. Applied Computer Research, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.